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Cognomen Elka (Elka , Елка , Элька ) , worldwide, is quite a common last name. The family name Elka is habitual in Bulgaria, where it is quite a common surname, North Macedonia, where it is quite a rare surname, and Morocco. Measured by absolute frequency, it is commonest in India, Bulgaria, and Indonesia. Likewise, Elka is the forename as well as the last name.